in addition to salazar's exit at interior, lisa jackson is leaving as environmental protection agency chief as is energy secretary steven chu with no replacements announced yet. and mr. obama's economic team will also have new faces, as he moves to replace: labor secretary hilda solis, trade representative ron kirk and rebecca blank, the interim commerce secretary who replaced gary locke when he became ambassador to china. critical issues await them, from action on climate change, to the keystone x-l oil pipeline, to negotiations on new trade agreements with a dozen nations, and the european union. the president set the tone for the selections to come, with his description of jewell today. >> she knows the link between conservation and good jobs. she knows that there's no contradiction between being good stewards of the land and our economic progress, that in fact, those two things need to go hand-in-hand. >> ifill: the immediate response to jewell's nomination was positive -- from business and environmental groups alike. we get more now on the president's second-term cabinet and the